Duration: 3:40

1 views

0

Rain, driven by the wind, falls on a railway compartment with a velocity of \( 20 \mathrm{~m} \mathrm{~s}^{-1} \), at an angle of \( 30^{\circ} \) to the vertical. The train moves, along the direction of wind flow, at a speed of \( 108 \mathrm{~km} \mathrm{~h}^{-1} \). Determine the apparent velocity of rain for a person sitting in the train.
(1) \( 20 \sqrt{7} \mathrm{~m} \mathrm{~s}^{-1} \)
(2) \( 10 \sqrt{7} \mathrm{~m} \mathrm{~s}^{-1} \)
(3) \( 15 \sqrt{7} \mathrm{~m} \mathrm{~s}^{-1} \)
(4) \( 10 \sqrt{7} \mathrm{~km} \mathrm{~h}^{-1} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live